Richard Temple-Nugent-Brydges-Chandos-Grenville, 1st Duke of Buckingham and ChandosKG, PC (20 March 1776 – 17 January 1839), styled Earl Temple from 1784 to 1813 and known as The Marquess of Buckingham from 1813 to 1822, was a British landowner and politician.

Buckingham also owned a plantation in Jamaica and 10,482 acres (42.42 km2) in Britain, including thirty-eight properties in the Old Nichol.[7]Nicknames such as "Lord Grenville's fat nephew", Ph D (Phat Duke), and the "gros Marquis", attested to his size and unpopularity.[4]

In April 1796, aged 20, the then Earl Temple married the Lady Anne Brydges (died 1836[8]), daughter, only adult child and sole heir of the late James Brydges, 3rd Duke of Chandos. Accordingly, Nugent-Temple-Grenville added Brydges and Chandos to their family names (and those of their children) by royal licence of 15 November 1799;[9] and their full family name became the remarkable quintuple-barreledTemple-Nugent-Brydges-Chandos-Grenville. He died in January 1839, aged 62, and was succeeded by his son, Richard.